We have come a long way with designing a system that makes tea straight out of the worm bin. We did experience some unexpected but pleasant surprises as the worms doubled in volume about every 12 days. The main difference we found was in the number of worms in a pound. The worm population in a pound of worms in a normal worm bin will contain about 1,000 worms. In our system they remained a constant 8,000 per pound.